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authorEric Anholt2017-02-27 21:11:43 +0100
committerEric Anholt2017-02-28 21:51:49 +0100
commitf6c01530fd987eb70e051580d831ac04ef920352 (patch)
tree3c294fd04e8f43cca7f728c7a2c96a001ea3a976 /drivers/gpu/drm/vc4/vc4_crtc.c
parentdrm/vc4: Add RST to bring together vc4 kerneldoc. (diff)
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drm/vc4: Extend and edit documentation for output from the RST
I had written most of my comments as if I was describing the individual code files the way I used to for doxygen, while for RST we want to describe things in a more chapter/section way where there's no obvious relation to .c files. Additionally, several of the files had stub descriptions that I've taken this opportunity to extend. Signed-off-by: Eric Anholt <eric@anholt.net> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170227201144.10970-4-eric@anholt.net
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_crtc.c')
-rw-r--r--drivers/gpu/drm/vc4/vc4_crtc.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index fd6f8d9669ce..24edd0c22cc9 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -11,12 +11,13 @@
*
* In VC4, the Pixel Valve is what most closely corresponds to the
* DRM's concept of a CRTC. The PV generates video timings from the
- * output's clock plus its configuration. It pulls scaled pixels from
+ * encoder's clock plus its configuration. It pulls scaled pixels from
* the HVS at that timing, and feeds it to the encoder.
*
* However, the DRM CRTC also collects the configuration of all the
- * DRM planes attached to it. As a result, this file also manages
- * setup of the VC4 HVS's display elements on the CRTC.
+ * DRM planes attached to it. As a result, the CRTC is also
+ * responsible for writing the display list for the HVS channel that
+ * the CRTC will use.
*
* The 2835 has 3 different pixel valves. pv0 in the audio power
* domain feeds DSI0 or DPI, while pv1 feeds DS1 or SMI. pv2 in the